From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4A766C17440 for ; Fri, 8 Nov 2019 23:22:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1AE4420674 for ; Fri, 8 Nov 2019 23:22:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727654AbfKHXWC (ORCPT ); Fri, 8 Nov 2019 18:22:02 -0500 Received: from mail-il1-f197.google.com ([209.85.166.197]:56104 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726640AbfKHXWB (ORCPT ); Fri, 8 Nov 2019 18:22:01 -0500 Received: by mail-il1-f197.google.com with SMTP id n81so8547289ili.22 for ; Fri, 08 Nov 2019 15:22:01 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=fZBWZmhBvbt6zcf8opfeH4uRGdLcSuaPay33uvUsov8=; b=FqU9UOuzhRn0BBA/rK5KyfGSDg5fEhiB2gViXO14kbdP1LRr5CzsYM1ThRSpRpetmh ZgSoN0QFCG3ELNotLVFKAUMlXUf59uN65prRx6Hy0mVLCHnK+Sn0ErDjvnT3cnfHN2ye HsWh9WeMbuxAPG8L9x/LxZwEyB+viVJlEMlmj0gTL9O4dM/TDSa3UeNw7BxK7Qq4tr6L 9L1hDe0yBcwVcPUL2BLA0XTAoOwJsP/WX1I59DHAeDvkvTGQchDTlf8Z47R2LwufZxTl /bghoZeG+AC5FY9QGelt4xvfWuGTXQvUXQy9JqUoUVEVpytLxvNku4ctl6AxASZoET/E gpjw== X-Gm-Message-State: APjAAAU20YhLuI7jKt+NAbV6Rm+Tvx8OGx4lBGY+t8xk3Qq+09b55tb+ YWPaYtKHP8KDYIZhlIysqRtJ97R/v/02dyk4nMwn3aUrv0ph X-Google-Smtp-Source: APXvYqxXK+B0noGMchCiLhdOqlZkZLD11zQO6N8pxV4Mx78bt78T6dhHXUrD3Fbmsm2Qj/LYzrfMK2p60Ns7ZEMWeqS+vpidEYKD MIME-Version: 1.0 X-Received: by 2002:a92:9e4c:: with SMTP id q73mr15670936ili.53.1573255320305; Fri, 08 Nov 2019 15:22:00 -0800 (PST) Date: Fri, 08 Nov 2019 15:22:00 -0800 In-Reply-To: <0000000000006264c60596d8c5fa@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008207e30596de0cf3@google.com> Subject: Re: KASAN: use-after-free Read in j1939_session_deactivate From: syzbot To: bst@pengutronix.de, davem@davemloft.net, dev.kurt@vandijck-laurijssen.be, ecathinds@gmail.com, kernel@pengutronix.de, linux-can@vger.kernel.org, linux-kernel@vger.kernel.org, linux@rempel-privat.de, lkp@intel.com, maxime.jayat@mobile-devices.fr, mkl@pengutronix.de, netdev@vger.kernel.org, o.rempel@pengutronix.de, robin@protonic.nl, socketcan@hartkopp.net, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit 9d71dd0c70099914fcd063135da3c580865e924c Author: The j1939 authors Date: Mon Oct 8 09:48:36 2018 +0000 can: add support of SAE J1939 protocol bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17325552e00000 start commit: 847120f8 Merge branch 'for-linus' of git://git.kernel.org/.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=14b25552e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=10b25552e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=8c5e2eca3f31f9bf dashboard link: https://syzkaller.appspot.com/bug?extid=a47537d3964ef6c874e1 userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=164973b4e00000 Reported-by: syzbot+a47537d3964ef6c874e1@syzkaller.appspotmail.com Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol") For information about bisection process see: https://goo.gl/tpsmEJ#bisection